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PT3580388T - Sistema e método para remoção de sílica num processo de polpação - Google Patents

Sistema e método para remoção de sílica num processo de polpação

Info

Publication number
PT3580388T
PT3580388T PT187506779T PT18750677T PT3580388T PT 3580388 T PT3580388 T PT 3580388T PT 187506779 T PT187506779 T PT 187506779T PT 18750677 T PT18750677 T PT 18750677T PT 3580388 T PT3580388 T PT 3580388T
Authority
PT
Portugal
Prior art keywords
pulping process
silica removal
silica
removal
pulping
Prior art date
Application number
PT187506779T
Other languages
English (en)
Portuguese (pt)
Original Assignee
Valmet Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valmet Oy filed Critical Valmet Oy
Publication of PT3580388T publication Critical patent/PT3580388T/pt

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/023—Cleaning wood chips or other raw materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Silicon Compounds (AREA)
PT187506779T 2017-02-07 2018-01-31 Sistema e método para remoção de sílica num processo de polpação PT3580388T (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1750106A SE1750106A1 (sv) 2017-02-07 2017-02-07 System and method for silica removal in a pulping process

Publications (1)

Publication Number Publication Date
PT3580388T true PT3580388T (pt) 2023-06-05

Family

ID=62244602

Family Applications (1)

Application Number Title Priority Date Filing Date
PT187506779T PT3580388T (pt) 2017-02-07 2018-01-31 Sistema e método para remoção de sílica num processo de polpação

Country Status (9)

Country Link
EP (1) EP3580388B1 (es)
CN (1) CN110249092A (es)
CL (1) CL2019002201A1 (es)
ES (1) ES2947013T3 (es)
FI (1) FI3580388T3 (es)
PL (1) PL3580388T3 (es)
PT (1) PT3580388T (es)
SE (1) SE1750106A1 (es)
WO (1) WO2018147784A1 (es)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199399A (en) * 1976-04-19 1980-04-22 Process Evaluation & Development Corp. Method for preparing bagasse dissolving pulps and producing rayon having a degree of polymerization of at least 800 therefrom
IN154386B (es) * 1979-12-10 1984-10-20 Dorr Oliver Inc
US4436586A (en) * 1982-01-22 1984-03-13 Kamyr, Inc. Method of producing kraft pulp using an acid prehydrolysis and pre-extraction
US4668340A (en) * 1984-03-20 1987-05-26 Kamyr, Inc. Method of countercurrent acid hydrolysis of comminuted cellulosic fibrous material
FI103418B (fi) * 1996-01-31 1999-06-30 Sunds Defibrator Woodhandling Menetelmä ja laite selluloosamassan valmistamiseen käytettävän kuituai neksen esikäsittelemiseksi
ZA974836B (en) * 1997-06-02 1998-06-24 Bountiful Applied Res Corp Process for treating spent, waste, alkaline digestion liquor from paper pulping operations and product.
WO1998059107A1 (en) * 1997-06-25 1998-12-30 Kvaerner Pulping Ab Method in connection with the pretreatment of comminuted fibrous material
RU2383675C1 (ru) * 2005-12-07 2010-03-10 Келли Энтони О`ФЛИНН Осуществляемый в каталитическом реакторе процесс производства промышленной целлюлозной массы, нативного лигнина и одноклеточного белка
CN101255664B (zh) * 2008-02-02 2010-10-20 山东太阳纸业股份有限公司 一种非木材纤维制浆方法
FI123100B (fi) * 2010-03-11 2012-11-15 Metso Paper Inc Menetelmä sivutuotteiden talteenottamiseksi
WO2013149913A1 (en) * 2012-04-03 2013-10-10 Ovivo Luxembourg S.a.r.l. Process for removal of solid non-fibrous material from pulp
US9333468B2 (en) * 2012-09-24 2016-05-10 Abengoa Bioenergy New Technologies, Llc Soak vessels and methods for impregnating biomass with liquid
JP6522274B2 (ja) * 2013-08-06 2019-05-29 日本製紙株式会社 溶解クラフトパルプの製造方法。
CN203429499U (zh) * 2013-09-11 2014-02-12 江苏飞翔纸业有限公司 一种防堵塞制浆废水循环利用系统
US10179971B2 (en) * 2014-03-21 2019-01-15 Iogen Energy Corporation Method for processing a cellulosic feedstock at high consistency
SE539706C2 (en) * 2014-11-07 2017-11-07 Valmet Oy Method for recovering hydrolyzate

Also Published As

Publication number Publication date
SE540305C2 (en) 2018-06-05
FI3580388T3 (fi) 2023-07-10
PL3580388T3 (pl) 2023-09-11
EP3580388B1 (en) 2023-05-10
SE1750106A1 (sv) 2018-06-05
ES2947013T3 (es) 2023-07-31
WO2018147784A1 (en) 2018-08-16
EP3580388A4 (en) 2020-12-23
CN110249092A (zh) 2019-09-17
BR112019014396A2 (pt) 2020-02-11
CL2019002201A1 (es) 2019-11-08
EP3580388A1 (en) 2019-12-18

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